¿cuál es la probabilidad de que al lanzar 2 dados caiga un 11?

(1 + 1) (1 + 2) (1 + 3) (1 + 4) (1 + 5) (1 + 6)

(2 + 1) (2 + 2) (2 + 3) (2 + 4) (2 + 5)( 2 + 6)

(3 + 1) (3 + 2) (3 + 3) (3 + 4) (3 + 5) (3 + 6)

(4 + 1) (4 + 2) (4 + 3) (4 + 4) (4 + 5) (4 + 6)

(5 + 1) (5 + 2) (5 + 3) (5 + 4) (5 + 5) (5 + 6)

(6 + 1) (6 + 2) (6 + 3) (6 + 4) (6 + 5) (6 + 6)

Formula para calcular la probabilidad

<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7BCasos%20favorables%7D%7BCasos%20posibles%7D%20" />

p = <img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B2%7D%7B36%7D%20" />

Simplificamos y nos da :

<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B1%7D%7B18%7D%20" /> R / / .